Filling replenishing shuttle



H. A. DAVIS FILLING REPLENISHING SHUTTLE Feb, 23 1926.

Filed oct. 26, 1925 MN KN NM ATTORNEY Patented Feb. '23, 1926.

UNITED STATES PATENT OFF-ICE.

HARRY A, DAVIS, OF HOPEDALE, MASSACHU$ETT$, ASSIGNOR '10 DRAZEER CORPORA- TION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

FILLING: REPLENIFHING SHUTTLE.

Application filed Gctober 26, 1925. Serial No. 64,753.

2' '0 all whom it may concern:

Be it known that I, HARRY A. DAVIS, a citizen of the United States, and a resident of Hopedale, in the county of \Vorcester and State of Massachusetts, have invented an Improvement in Filling lteplenishing bhuttles, of which the following description, in connection with the accompanyingdrawings, is a specification, like characters on the drawings representing like parts.

This invention relates to filling replenishing shuttles and is more particularly di-, rooted to the bobbin holding end of the shuttle.

It is now the common practice to provide filling replenishing shuttles with bobbin holding jaws to receive the rings of a bobbin and hold the latter in proper position in the shuttle during weaving. Owing to the rapid and almost instantaneous transfer of a bobbinbetween the bobbin holding jaws of the shuttle, much strain is placed upon the parts, and should the shuttle not be in proper position to receive the incoming filling carrier or bobbin, the base of the bobbin will frequently strike the inclined guide, usually located between the bobbin holding jaws, and be quickly forced endwise, with the result that it frequently happens that the bobbin fails to be properly grasped by the bobbin holding jaws, and injury to the cloth being woven or improper weaving operation may result.

One of the objects of the present invention is to provide bobbin holding jaws which will be inherently capable of readily receiving the bobbin'as it is transferred to the shuttle and act upon an incoming bobbin to prevent undue endwise movement there after as it moves to position in the shuttle.

In accordance with the present invention, the bobbinhol'ding jaws are each provided with a double bevel, one of which extends downwardly from the upper edge of the jaws, and the other of which extends longitudinally towards the end of the jaws, to

provide a bobbin engaging surface on the jaws which will check any tendency to endwise movement of the bobbin relative to the shuttle during transfer. The double bevel formed in accordance with the present invention enables the bobbin holding jaws to readily receive between them the head'of the incoming filling carrier or bobbin, and then acts upon the bobbinto properly position it between the jaws by preventing endwise movement of the bobbin between the jaws. The jaws are, of course, subjected to considerable endwise stress under the above conditions, and another feature of the invention therefore consists in a through-bolt which passes through the bend of the shank connecting the two jaws to withstand the frontward stress placed upon the jaws by the incoming filling carrier or bobbin, especially where the head of the bobbin strikes the incline leading between the jaws.

The invention and new combination of parts will best be made clear from the fol-- lowing description and the accompanying drawings of one good practical form thereof.

In the drawings:

Fig. 1 is a plan view showing the bobbin holding end of a filling replenishing shuttle provided with the present invention;

Fig. 2 is an endwise view showing a bobbin held between the bobbin holding jaws, which are themselves provided with the present improvement; and

Fig. 3 is a detached enlarged View showing one of the bobbin holding jaws in side elevation.

The shuttle 1 is provided with'the usual bobbin chamber 2, the bottom of the shuttle being cut away, as customary in this type of shuttle, for the exit of the-outgoing filling carrier on replenishment of filling.

The bobbin holder, in accordance with the present invention, is preferably formed of a single piece of metal which is bent upon itself to provide a shank portion and two bobbin holding jaws, although such construction may be varied within the purposes of the present invention. As indicated in Fig. l, the bobbin holder has a shank portion 3, shown by dotted. lines, which is turned upon itself to form a bend at 4;, to receive a through-bolt 5 which rests snugly in the surface of the bend 4i and acts thereby to counteract any endwise movement of the jaws as the bobbin is transferred to position between the jaws, as will more fully appear. Extending through the shank portion 3 of the bobbin holder is the transverse bolt 6, and between the bent portions of the bobbin holder is inserted a spacing block 7 through which the transverse bolt 6 extends, the two bolts acting eliectively to maintain the bobbin holder in its assembled position in the shuttle.

Extendin from the shank portion 3 of the bobbin holder arethe bobbin holding jaws 8 between which is located an inclined guide 9, the end portion 10 of which is preferably extended over the shank of the bobbin holder to be held in place with relation thereto and the shuttle by means of the through-bolt 5. In-the present instance of the in'vention, the inclined guide,9, has the base portion 11, the end 12 of which extends beneath the shank of the bobbin holder and, like the top plate 10 of the guide, is held in place by the through-bolt 5.

The bobbin 1-3 on which the filling or thread let is wound, is shown as provided with the usual bobbin holding rings 15, three in number in'the present instance, which are intended to be received in and held by bobbin holding grooves formed in the bobbin holding jaws.

Each of the bobbin holding jaws 8 is connected with its shank portion 3 by the curved side arms 16, the upper edge portions of which are cut away, as at 17, to form a resilient portion or base which will effectively yield to the stress of the incoming filling carrier and permit its location between the bobbin holding jaws.

In accordance with the present invention, each bobbin holding jaw is provided with a double bevel adjacent the bobbin holding portion of the jaws, and preferably extending from the cut-away or base portion 17 of the jaws. wardly from the upper edge 18 of each jaw and is intersected by a second bevel which extends from the base portion of each jaw longitudinally of the jaw to the end thereof, and in order to check endwise movement of a bobbin in the shuttle during transfer, the longitudinally extending bevel is cut deeper, as at 19, adjacent the edge of the bobbin holding jaw, and progressively decreases in depth of out towards the end of the bobbin holding jaw, as at 20, the result being that the double bevel provides an increased thickness of the bobbin holding aws at their end portions, and since the longitudinally extending bevels on the opposite jaws converge by reason of the depth in out throughout the longitudinal bevel, the incoming filling carrier will be checked in its endwise movement relative to the. shuttle during transfer.

Since the longitudinally extending bevel is out deeper into the metal of the jaws adjacent the base 17 thereof and gradually decreases in depth of out towards the end of the jaws, the intersection of the downwardly extending bevel from the upper edge of the jaws at 18 and the longitudinally extending One of such bevels extends down' bevel, as indicated at 21, will incline upwardly, so that should the incoming bobbin strike the inclined guide 9 owing to improper relative position of the shuttle and incoming bobbin, the metal rings 15 on the bobbin will first engage the bobbin holding jaws at the deep out of the longitudinally extending bevel, as at 19, and any tendency to longitudinal movement of the bobbin thereafter will meet with a checking influence due to the tapering bevel of less depth of out towards the end of the bobbin holding jaws.

It is now the usual practice to provide the inner surface of the bobbin holding jaws with ring engaging recesses, whereby the bobbin may be held in proper position in the shuttle during weaving. In accordance with the present invention, such ring receiving recesses intersect at their upper ends the double bevel hereinbefore described, and each ring receiving recess is of different dimension vertically of the bobbin holding jaws. F or instance, the recess 22 near the base or deep cut of the longitudinally extending bevel is less in length than the next ring receiving recess 23, and similarly the recess 24. near the end of the bobbin holding jaw is of greater length than is the adjacent recess 2?), with the result that when the incoming bobbin engages the deep cut of the longitudinal bevel at 19, Fig. 3, and is moved frontwardly by the bobbin guide 9, as hereinbetore noted, the longitudinally bevelled surface will check the endwise movement of the bobbin and such checking influence is augmented by engagement of the bobbin holding rings 15 with the successive bobbin holding recesses, which increase towards the end of the bobbin holding jaws.

From the construction described it will be apparent that the present invention provides a double bevel on the inner face of the bobbin holding jaws, one oi which bevels extends downwardly from the upper edge of each jaw, and the other of which extends with progressively decreasing depth of out towards the end of the bobbin holding jaws, so that the incoming filling carrier may by the first bevel be positioned between the aws and be checked by the longitudinally extending bevel from undue endwise movement in the shuttle during transfer.

What is claimed is:

1. An automatic filling replenishing shuttle having a bobbin holder comprising bobbin holding jaws recessed on their inner faces for engagement with the bobbin rings, and a double bevel on the inner face of the bobbin holding jaw, one bevel extending downwardly from the top edge of the jaw for the ready entrance of a bobbin between the jaws and the other bevel having its greatest depth of cut at its inner end back of the inner bobbin holding recess and longitudinally of the jaws and progressively decreasing in depth throughout its length from its inner end towards the end of the aws.

2. A filling replenishing shuttle having a bobbin holder comprising bobbin holding jaws provided with bobbin holding grooves and having a bevel extending downwardly from the upper edge of the jaws and a second bevel of maximum depth at its inner end which is back of the inner bobbin holding groove and extending longitudinally of the jaws and intersecting the bevel extending downwardly from the upper edge of the jaws, the double bevel thus formed being of greatest surface area at the inner end of the two bevels back of the inner bobbin holding groove and decreasing in depth and surface area towards the ends of the aws. 3 3. A filling replenishing shuttle having a bobbin holder comprising bobbin holding jaws formed with a bevel ext-ending downwardly from the upper edge of the jaws and a second bevel extending longitudinally of the jaws and intersecting the downwardly extending bevel, said second bevel having its maximum depth at its inner end adjacent the base of the jaws and progressively of uniform decreasing depth towards the ends of the jaws to check endwise movement of the bobbin as it is inserted between the jaws.

4. A filling replenishing shuttle having a bobbin holder formed of a single strip of metal bent to provide a shank and bobbin holding'jaws, each of said jaws having a bevel extending downwardly from the upper edge thereof and a second bevel intersecting extending longitudinally of the jaw and progressively of decreasing depth of cut from the base towards the end of the jaw to check endwise movement of the in coming bobbin, a through-bolt passed through the bend of the shank and bearing against the end bend thereof to prevent endwise movement of the bobbin holder due to the stress of the incoming bobbin between the jaws, and a transverse bolt passing through the shank of the bobbin holder.

5. A filling replenishing shuttle having a bobbin holder comprising bobbin holding jaws formed with a bevel extending downwardly from the upper edge of the jaws and a second bevel extending longitudinally of the jaws and intersecting the first bevel throughout its length, said second bevel being cut deeper at its inner end adjacent the base of the jaws and progressively of decreasing depth from its inner end to the ends of the jaws to check endwise movement of the bobbin as it is inserted between the jaws, and bobbin holding grooves communieating with the two bevels on the inner faces of the jaws.

6. A filling replenishing shuttle having a bobbin holder comprising bobbin holding jaws each having aresilient base portion, a bevel extending downwardly from the upper edge of the jaws and a second bevel extending from the base to the end of the jaws and intersecting the bevel extending downwardly from the upper edge of the jaws, said second bevel being of greater depth of cut at the base than at the end of the jaws.

7. A filling replenishing shuttle having bobbin holding jaws provided with transversely extending bobbin holding grooves and a bevel extending downwardly from the upper edge of the jaws, a second bevel ex tending from a point back of the bobbin holding grooves longitudinally to the end of the jaws and intersectingthe downwardly extending bevel, said second bevel being wider and deeper at its inner end back of the bobbin holding grooves and progressively of decreasing depth to the end of the jaws.

In testimony whereof, I have signed my name to this specification.

HARRY A. DAVIS. 

